Multiple machine



Sept. 9, 1930.

D. w. MacMlLLAN 1,775,41

V MULTIPLE MACHINE Filed Nov. 19, 1929 5 Sheets-Sheet 1 S Q W1 if Iii Hill .l I i i;

ATTORNEYS.

` Sept. 9, 1930. D w, MacMlLLAN 1,775,401

MULTIPLE MACHINE Filed Nov.l19, 1929 lsl sheets-sneu 2 Illlllllllllllll llllulllliilllll! Toa.

A TTORNEYS.

sePt- 9, 1930- D. w. MacMlLLAN 1,775,401

MULTIPLE mont-NE Filed Nov. 19, 1929 5 Shlts-Sheet 3 IN V EN TOR.

A TTORNEYS.

Painted sepa a, 1930 UNITED STATES PATENT oFElcE n DANIEL W. hamm, OITPBOVIDENOE, RHODE ISLAND, ABSIGNOB T O0., INU., 0l' IBOVIDENOE, RHODE ISLAND, A CORPORATION 0l" RHODE ISLAND xtrL'rIrLn noma p advantalge to provide feedin Application flied November 19, 1929. Serial l'o. 408,816.

The present invention relates to multiple machines for operatin `on a continuous sti-1p of stock material, an has iparticular reference to multiple machines o the eyelet type.

One object of the invention is to provide anovel feedin mechanism and a novel feeding method Ier a multiple machine with a plurality of sets of tools operating on a single stri of Astock material.

Anot er object of the invention is to provide a feedin arrangement forv the strip of stock materia which will relieve all stress and pull on the strip between successive opt With these and other objects in view, the

invention consists of a novel arrangement of Varts more fully disclosed in the detailed escription following, in conjunction with lthe accompanying drawings, and more particularly set forth in the appended claims.

In the drawin s: p

Fi re 1 is a ront elevation `of the novel multlple machine;

Figure' 2 is a back elevation thereof;

Figure 3 is a section on the line 3--3 of Figure 2, showing the path of travel of the strip of stock material, and the feeding mech anism therefor; and

Figure 4 is an enlarged sectional detail of a ide block for the stock strip.

It as been found desirable, in the use of multiple tool machines operating on a continuous stock strip, to eliminate all stress and pull on the strip between successive operations and thus permit exact work centering without distortion; and it has beenfound of devices which do not o struct the vision of t e operator and do not interfere with adjustment or replacement of tools. I have devised a novel feeding arrangement which feeds the strip stock in a helical loop around the lower portion of the machine to be operated upon by the tools in successive passes in sequence or inde ndently, as desired, the slack in the depen 'ng loop portions eliminatin al1 stress and pull on the work and I utillz'e positive intermittent feeds to feed each strip stock portion to the next tool, thus insuring exact ali ent of the work and tool irrespective o the number of operations performed in the multi le machine; and the following is a detailed 0- scription of the specific embodiment of my invention as applied to a multiple drawing, cutting or swaging machine of the eyelet yPe Referring tothe drawings, 10 designates the frame of the multi le machine, com rising a head section 11, a d section 12, an the usual sup ort members 0r feet 13. A plurality of in ependently operating tools 14 are mounted to reciprocate in the head section guide ways 15, and are actuated in timed reation by a cam or crank shaft 16 rotated through the pulley drive 17. Each operating tool 14 has a cooperating die block or the like 18 which is firmly positioned in align-A ment therewith on the bed section 12, both the operating tool and die'block being adjustable and replaceable in the usual man- Der.

type and is preferabl drawn oif a suppl roll 20 journaled on t e frame 10, the stock strip passing around the bed section in a helical curve for successive presentation to the tool sets. As is particularly shown in Figure 3, the strip stock passes upwardly between two spaced ide rods 21-22, over a rounded guide bloc 23 and under a retainer ide wire 24 and into enga ement with a ile block 18; the strip stoc then passes through a guide bar 25 and over a curved front plate 26 to again pass between guide rods 21, 22.

Each tool set is equi ped with an independent feeding device 2 the illustrated device comprises a sprin pressed pivoted lever 28 having an adjustab e roller arm 29 at one end thereof adapted to be actuated by a cam 30 in timed relation to the movement of its set of cooperatin tools, a feeder and holder linger 31 orthe e being pivotally mounted The stock strip 19 is of the continuous strip on the lower end to engage the work'strip under tension of the usual spring 82 for successively feeding the work strip forward to its set of cooperating' Instead of using a nger device as ascribed above, a pine feed such as shown at`33 in Fure 2, may be used, the finger type being pre erable for eyelet and punch operations. A' I De nding on the nature of the work, the die b ock may be provided with an ejector of any well known type to permit free advance of the stock strip after each o ration, this device being omitted from the rawings to simplify the illustration thereof.

My improved feeding arrangement therefore feeds the work, progressively to the tool sets without obstructing the vision of the o rator and'without diminishing the Aaccessi ilityof the tools for adjustment or replacement; in addition, the slack of the dending loop portions permits ositive free ceding to eac tool set, which ceding may be entirely indeplendent of the other adjacent feedings. n erated in succession u on the same material, and may, if desired, operated independently or in unison, the feeding mechanisms being arran ed to cooperate with the timed movement 0% the associated tools.

The intermittent feedin to each tool set may be in unison, but pre erably is in timed relation to the operation of each tool set, and

slightly displaced in time phase, thus being out of time with each other to reduce excessive vibration. The tool sets may be adjusted to obtain a sequence of operations for producing a single article, or to operate inde endentl ,as desired.

ile I ave described a s cific embodiment of my invention, it is o vious that desired changes in arrangement and in the construction of the parts may be made without departing from the s irit and the scope of the invention as 'de ed in the appended claims.

I claim;

1. In combination, a machine frame, a series of tools movably mounted therein for operating on a continuous strip of. stock, means for 'ding the stock in a substantially helicaIuI-iath in successive asses to be operated upon by said series o tools, and means for positively feeding said stock to each tool. f

'2. In combination, a machine frame, a series of tools movably mounted therein for successively operating on a continuous strip of stock, means for guiding the stock in a substantially helical path in successive passes to be operated on bysaid series of tools, and

Aindependent means for feeding said stock to each tool.

3. In combination, a machine frame having a head section and a bed section, a series of cooperating tool sets mounted in said secferably, the tools are op- .4

tions for operatiig on Aa continuous strip of stock, and means or said continuous strip in' a substantie. y helical path in imc-v cessive p around said bed section and said series of tools.

throu h 4. combination, a machine .frame hav-1 ing a head section and a bed section, a series of coo rating-tool sets mounted in said sections or successively operating on a continuous strip of stock, and means for said continuous strip in a substanti y he ical path in successive passes around said bed section and throu h said series of tools.

6. In combination, a machine frame having a head section and a bed section, a series of coo erating tool sets mounted in said sec- -tions or operating on a continuous strip of stock', meansl for iding said continuous strip in a substantially helical path in successive asses around said bed section tol be operate uponby said series of tools, and means for positively feeding said strip to each tool set.

6. In combination, a machine frame having a head section and a bed section, a series of coo erating tool sets mounted in said sections or successively operating on a continuous strip of stock, means for guidin said continuous strip in a substantia ly he ical path in successive passes around said bed section vto be operated upon by said series of tools, and independent means for positively feeding said strip to each tool set.

7. In combination, a machine frame having a head section and a bed section, a series of coo rating tool sets mounted in said sections or operating on a continuous strip of stock, means for iding said continuous stri in a substantially helical path in successive asses around said bed section to be operate upon by said series of tools, and independent means for positively feedin saidstrip to'each tool set at predetermine time intervals.

8. In a multiple punch press, a frame having a head'section and a bed section, a series of punches mounted in said head section, a series of cooperating dies mounted in said bed section, and means for guiding a continuous strip of stock in a substantiall helical path in successive passes around said bed section to be operated pon by said series of cooperating punches and dies.

9. In a multiple punch press, a frame having a head section and a bed section, a series ofl punches mounted in said head section, a series of cooperating dies mounted in said bed section, means for guiding a continuous strip of stock in a substantially helical path in successive passes around said bed section to be operated upon by said cooperating series of punches and dies, and means for positively feeding said strip to each set of cooperating punchesand dies; a l

10. In a multiple punch press, a frame havmechanism for positively feeding said strip ing a head section and a bed section, a series to each set of cooperating punches and dies of punches mounted in said head section, a in timed relation to their o eration. f series of cooperating dies mounted in said In testimony whereof I a my signature. bed section, means for operating sets of co-' DANIEL W. MACMILLAN. operating punches and dies in succession, and means for guiding a continuous strip of stock in a substantially helical path in successive passes around said bed section to be operated upon by said sets of punches and dies.

11. In a multiple punch press, a frame having a head section and a bed section, a series of punches mounted in said head section, a series of cooperating dies mounted in said bed section, means for operating sets of cooperating punches and dies in succession, means for guiding a continuous strip of stock in a substantially helical path in successive passes around said bed section to be operated upon by said series of punches and dies, and independent means for positively feeding said strip to each set of cooperating punches and dies in timed relation to their operation.

12. In combination, a machine frame, a series of reciprocating tools movably mounted therein for operating on a continuous strip of stock, means for guiding the stock in a substantially helical path in successive passes to be operated upon by said series of tools, and means for positively feeding said stock to each tool.

13. In combination, a machine frame, a series of reciprocating tools movably mounted therein for successively operating on a continuous strip of stock, means for guiding the stock in a substantially helical ath in successive passes to be operated on y said series of tools, and independentmeans for feeding said stock to each tool.

14. In a multiple punch press, a frame having a head section and a bed'section, a series of punches mounted in said head section, a series of cooperating dies mounted in said bed section, mechanism for operating the cooperating punches and dies, guiding devices for guiding a continuous strip of stock in a substantially helical path in successive passes to be successively operated on .by said series of punches and dies, and feeder finger mechanism for positively feeding said strip to each set of cooperating punches and dies in timed relation to their operation. y

15. In a multiple punch press, a. frame having a head section and a bed section, a series, or punches mounted in said head section, a series of cooperating dies mounted in said bed section, mechanism for operating the cooperating punches and dies at intervals which are relatively displaced in phase, guiding dev vices for guiding a continuous strip of stock in a 'substantially helcalpath in successive passes to be successvel operated on by said series of punches and es, and feeder finger les 

